ADM485
TEST CIRCUITS
V
R
R
CC
A
B
V
OD
R
L
0V OR 3V
DE IN
S1
S2
DE
V
OC
C
V
OUT
L
Figure 20. Driver Voltage Measurement
Figure 23. Driver Enable/Disable
375Ω
A
B
V
V
60Ω
TST
V
OD3
OUT
RE
C
L
375Ω
Figure 21. Driver Voltage Measurement
Figure 24. Receiver Propagation Delay
V
CC
+1.5V
A
B
C
C
S1
L1
L2
R
L
S2
R
–1.5V
RE
LDIFF
C
V
OUT
L
RE
IN
Figure 22. Driver Propagation Delay
Figure 25. Receiver Enable/Disable
Rev. F | Page 10 of 16